There's not a magic size when an epic becomes a feature or the other way around.
I recommend you think of these terms as labels or tags that can be applied rather than as a strict hierarchy.
Hi, I'm Mike Cohn and I am the author of three best-selling books on Agile and Scrum.
Think of tagging movies in your movie library software.
I want to tag some movies as action movies, some as comedies, and perhaps some romantic comedys.
Is there a strict definition of these?
If there are 32 jokes per hour, does that make it a comedy?
If there are 20 jokes plus a kiss, is it a romantic comedy?
It doesn't work that way.
Action movie, comedy, romantic-comedy are just labels we can apply, and we do it for our convenience.
The same should be true of terms like user story, theme, epic, feature, saga, or initiative.
They're just labels.
Use them if they're convenient, or I guess if someone in your organization is requiring them.
Is your team using a complicated product backlog item hierarchy?
What benefits do you see to that?
Any challenges?
Do you use terms other than the ones I've described?
Let me know in the comments.
I read and appreciate every comment.
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